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Electronics and Communication Engineering (ECE) : Power Electronics - Quiz(MCQ)
A snubber circuit is used to
A)
Limit the rate of rising in current across BJT
B)
Limit the rate of rising in voltage across BJT
C)
Limit the rate of rising in current across TRIAC
D)
Limit the rate of rising in voltage across SCR

Correct Answer : Option (D) :   Limit the rate of rising in voltage across SCR


Explanation : Snubber circuit refers to a kind of DV/dt protection circuit of the thyristor. It is used to limit the high rate of change of voltage from cathode to anode. It is usually used to protect SCR thyristor from high DV/dt and di/dt stress.

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